PHP 获取 http 头信息的方法分享
PHP http 头信息获取的方法,PHP 手册提供了现成的函数:
getallheaders
(PHP 4, PHP 5)
getallheaders ― Fetch all HTTP request headers
说明
array getallheaders ( void )
Fetches all HTTP headers from the current request.
This function is an alias for apache_request_headers(). Please read theapache_request_headers()
documentation for more information on how this function works.
返回值
An associative array of all the HTTP headers in the current request, orFALSE on failure.
Example #1 getallheaders() example
代码如下:
<?php
foreach (getallheaders() as $name => $value) {
echo "$name: $value\n";
}
?>
不过这个函数只能在 apache 环境下使用,iis 或者 nginx 并不支持,可以通过自定义函数
实现
代码如下:
<?php
<SPAN class=html>if (!function_exists('getallheaders'))
{
function getallheaders()
{
foreach ($_SERVER as $name => $value)
{
if (substr($name, 0, 5) == 'HTTP_')
{
$headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))]
= $value;
}
}
return $headers;
}
}</SPAN>